Zero tackle recently published an article about the top 30, development deals and train and trial contracts that they'd been given by the club which contradicts the rumours that they're both gone. Fanafou Seve was listed among the development players on December 27. Supposedly confirmed by the club as per the article. So either zero tackle are full of shit, possibly the club has given them false information or your source is wrong.
How far will they go next season?
www.zerotackle.com
I'm going to assume that the rumour mill has gotten it wrong this time until the club tell us he's gone.